Grate.



PATENTED APR. 24, 1906.

J. E. FROST.

GRATE.

APPLICATION FILED JAN. 14, 1905' 2 SHEETS-SHEBT 1.

II/ (5. WI wt/ya WITNESSES:

lNVENTOR BY El M ATTORNEY No. 818,533. PATENTED APR. 24, 1906.

J. E. FROST.

GRATB.

APPLICATION FILED JAN.14, 1905.

2 SHEETSSHEBT 2.

WITNESSES 2 INVEKTOR ATTORNEY if desired, be formed integrally with the JOHN EMORY FROST, OF WVATKINS,

NEW YORK, ASSIGNOR TO ELMIRA HEATER COMPANY, OF ELMIRA, NEW YORK.

GRATE.

Specification of Letters Patent.

Patented April 24, 1906.

Application filed January 14, 1905. Serial No. 241,034.

To all whont it Wan/y concern.-

Be it known that I, JOHN EMORY Fnosr, a citizen of the United States, residing at \Vatkins, in the county of Schuyler and State of j New York, have invented certain new and useful Improvements in Grates, of which the following is a specification.

This invention relates to improvements in grates such as are used in connection with steam or hot-water heaters of the vertical sectional type; and the objects of my improvements are to provide for the ready insertion and removal of the grate-bars for the purpose of repairs and also to provide for lengthening or shortening the grate as may be required to fit the grate to different lengths of heaters. With this latter object in view my invention also involves a base to contain the grate having sectional sides which may,

heater-sections.

I attain my objects by the arrangement and construction of the several parts of the grate and base as illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of a grate and base embodying my invention, the base front being omitted for the purpose of showing the interior construction of the grate. Figs. 2, 3, and 4 represent inside, end, and outside elevations, respectively, of one of the sections of the base sides where said sides are to be built up in sectional form; Fig. 5, a side elevation of one of the grate-bars removed; Fig. 6, a front elevation showing a heatersection with the base side parts formed i. tegrally therewith; Fig. 7, a vertical crosssection on the line 00 ac in Fig. 6 and Fig. 8 a side elevation of the heater-section.

Likeletters designate like parts in the several views.

The base for my improved grate consists of four principal parts-namely, a base front, (not shown,) a base back, and two sides, of which the latter may be made in sections.

The sides A are provided with base and top flanges a, the top flanges being intended to receive and support the parts of a sectional heater. The sides are connected at the rear to the base back, which consists of a plain casting or plate B, secured to the ends of the sides by means of bolts passing through holes at b in vertical end flanges or lugs on the sides. Similar bolt-holes I) are provided in the flanges at the front end of the side sections for attaching the base front thereto.

On the inside of the base sides at the top are inturned grooved flanges a, forming guideways C for the plates D, which constitute the grate-holders and are with interlocking connections, in order that the grate-hold.- ers may be readily built up to conform with any length of the base that may be required. This sectional form of the grate-holders also facilitates the insertion of the grate in the base and afterward the removal of the grate bars for the purposes of repair. In the form illustrated the plates D are coupled together by dovetail joints, the back and front ends being filled out by blanks J and K, which abut against the front and rear ends of the base, respectively. The holder-plates are provided with journal-bearings at E, which receive the end journals f on the grate-bars. As illustrated, each section of the grate-holders contains one such journal-bearing; but, if desired, the individual holdersections may be made longer and contain two or more journal-bearings. To prevent the holder plates from being warped by the heat, I pro vide them with stiflening-ribs d at the top and bottom turned outward. This also furnishes an air-space between the side walls of the guideways and the holder-plates to further protect them from overheating and provides room for the expansion of the grate-bars endwise in their bearings.

The grate-bars F are provided verse fingers spaced at equal distances apart, so as to form when assembled a grid-like surface. Arms Gr depend from the grate-bars at one side and are provided with pins at I, to which the shaking-bar H is coupled, said bar being adapted to be coupled to a shakinglever in the usual manner. Instead of form ing this bar in one piece it may be made in links, so as to be increased or decreased in length when grate-bars are added to or taken from the grate in lengthening or shortening the base. I

In assembling the grate after the base has been set up with the base front or the base back left off the sections of the grate-holders will be run into the guideways in pairs, the members of which are positioned opposite one another with one or more grate-bars in place between them, the members of each pair of holder-sections being locked into the with transis a.

members of a preceding p air and the grate-b ars set .in place between the holders as the holders are pushed in along the guides, each grate-bar extending between the opposite members of a pair of holdersections and being journaled therein. In this manner the grate may be set up easily and without the necessity of lifting heavy weights. For purposes of repair the entire grate will be drawn out until the defective grate-bar is reached, when such grate-bar can be removed and. a new one inserted and. the grate-bars and holders returned to place without disturbing any part of the heater with the exception of removing either the basefront or the base back, or both.

The base sides may be made in one part or may be made up in sections of a length equal to the thickness of one or more of the individual heater-sections which are to be placed upon the base. These side sections will be formed, as shown in Figs. 2, 3, and 4, with vertical end. flanges provided with bolt-holes 7) at top and bottom, by which they are coupled together. By this means if after a heater has been set up it .is found necessary or expedient to increase or diminish the heating capacity the base and grate can be easily lengthened or shortened in conformity with the number of sections added to or taken. away from the heater. By making the base sides in sections there is also avoided the necessity of carrying a number of different lengths of the sides in stock or making the sides to suit every length of heater put up. A standard. length of the base sides may be kept in. stock to correspond with the smallest size of heater and side sections added to these where other sizes of heaters that is to say, heaters with more sections are required.

Instead. of resting the heater-sections upon the base sides the side sections may be formed. integrally with the heater-sections. As illustrated in Figs. 6, 7, and 8, the heatersections N are provided at each side with legs M of the same thickness as the sections and forming solid ribbed extensions from the water-legs 0. These leg portions M will be brought together to form the base sides as the heater-sections are set up and will have the joints between them made airight by suitable packing. The guideways C are forn'ied on the inside of these logs adjacent to their junction with the water-legs.

l l aving thus deseril'ied my improved grate and base, what I claim as my invention, and. desire to secure by Letters Patent, is-

1. The combination of a base con'iprising ing provided on their inner faces with parallel guideways, grate-holders comprising plates coupled together by interlocking ]OlI1tS and H adapted to be inserted in said. guideways,

and grate-bars extending between and j ournaled in the oppositelydisposed holderplates.

3. The combination of a base comprising side and end members, the side members being made up of sections provided on their inner faces with parallel guideways, sectional grate-holders the sections of which are adapted to be coupled together and inserted in said guideways, and grate-bars extending between and j ournaled in oppositely-disposed holdersections.

4. The combination of a base comprising side and end members, the side members being provided on their inner faces with parallel guideways, grate-holders comprising separable ribbed plates adapted to be inserted in said guideways, and grate-bars extending between and journaled in oppositely-disposed holder-plates.

5. The combination of a base comprising side and end members, the side members being provided on their inner faces with parallel guideways, grate-holders comprising plates adapted to be inserted. in said guideways and provided with outturned longitudinal ribs, whereby air-spaces are formed between the holders and the side members, and gratebars extending between and journaled in op positely-disposed holder-plates.

6. The combination of a base comprising side and end members, the side members being made up of sections provided on their inner faces at or near the top with parallel guideways, sectional grate-holders adapted to be insert-ed .in said guideways, and gratebars extending between and journaled in oppositely-disposed holder-sections.

In testimony whereof I have affixed my signature in presence of two witnesses.

JOHN EMORY FROST.

Ni tnesses:

M. E. VERBEGK, A. S. DIVEN.

IIO 

